Real Time Racing, a game made by SIMBIN and uses the iOpener technology (iOpener used in real racing to show precisely the position+ speed + site of the car..) which allows you to play in real time against real life drivers.

My stupid friend: HOLY SHIT..!!! I JUST BEAT THE SHIT OUT OF KIMI RAIKKONEN IN RTR...wooooooot..

Abbreviation for "Right Turn Retard". A Right Turn Retard is a driver who takes much too long making a right turn, thus needlessly blocking the right lane (or, in some cases, the only lane) of traffic. For similar left-turn phenomenon, see L.T.L..